./Ultimate.py --spec ../sv-benchmarks/c/properties/valid-memsafety.prp --file ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i --full-output --architecture 32bit -------------------------------------------------------------------------------- Checking for memory safety (deref-memtrack) Using default analysis Version 20ed64ec Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb6bcc62184a60bbcb9e0528a455aeb84b21f101 ................................................................................................................................... Execution finished normally Using bit-precise analysis Retrying with bit-precise analysis Calling Ultimate with: /usr/bin/java -Dosgi.configuration.area=/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/config -Xmx15G -Xms4m -jar /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/org.eclipse.equinox.launcher_1.5.800.v20200727-1323.jar -data @noDefault -ultimatedata /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data -tc /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/AutomizerMemDerefMemtrack.xml -i ../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i -s /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf --cacsl2boogietranslator.entry.function main --witnessprinter.witness.directory /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux --witnessprinter.witness.filename witness.graphml --witnessprinter.write.witness.besides.input.file false --witnessprinter.graph.data.specification CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) --witnessprinter.graph.data.producer Automizer --witnessprinter.graph.data.architecture 32bit --witnessprinter.graph.data.programhash eb6bcc62184a60bbcb9e0528a455aeb84b21f101 ................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................................. Execution finished normally Writing output log to file Ultimate.log Result: UNKNOWN: Overapproximated counterexample --- Real Ultimate output --- This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:23:11,158 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:23:11,160 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:23:11,212 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:23:11,213 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:23:11,217 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:23:11,218 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:23:11,224 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:23:11,226 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:23:11,230 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:23:11,231 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:23:11,236 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:23:11,236 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:23:11,238 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:23:11,240 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:23:11,244 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:23:11,245 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:23:11,245 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:23:11,247 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:23:11,252 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:23:11,253 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:23:11,255 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:23:11,257 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:23:11,257 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:23:11,261 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:23:11,261 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:23:11,262 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:23:11,263 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:23:11,263 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:23:11,264 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:23:11,264 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:23:11,265 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:23:11,266 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:23:11,267 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:23:11,268 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:23:11,268 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:23:11,269 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:23:11,269 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:23:11,269 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:23:11,271 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:23:11,271 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:23:11,273 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Default.epf [2021-08-27 06:23:11,307 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:23:11,307 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:23:11,308 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:23:11,308 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:23:11,310 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:23:11,310 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:23:11,310 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:23:11,310 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:23:11,310 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:23:11,310 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:23:11,311 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:23:11,311 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:23:11,311 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:23:11,312 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:23:11,312 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:23:11,312 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:23:11,312 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:23:11,312 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:23:11,312 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:23:11,312 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:23:11,313 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:23:11,313 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:23:11,313 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:23:11,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:23:11,313 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:23:11,313 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:23:11,313 INFO L138 SettingsManager]: * Trace refinement strategy=CAMEL [2021-08-27 06:23:11,313 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in [2021-08-27 06:23:11,314 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:23:11,314 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6bcc62184a60bbcb9e0528a455aeb84b21f101 [2021-08-27 06:23:11,589 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:23:11,609 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:23:11,611 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:23:11,612 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:23:11,613 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:23:11,614 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-08-27 06:23:11,681 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3109b7baf/d1b8c8d2a7c84b0ab8f593ca6dc8bd36/FLAGc0604edae [2021-08-27 06:23:12,237 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:23:12,237 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-08-27 06:23:12,253 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3109b7baf/d1b8c8d2a7c84b0ab8f593ca6dc8bd36/FLAGc0604edae [2021-08-27 06:23:12,694 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/3109b7baf/d1b8c8d2a7c84b0ab8f593ca6dc8bd36 [2021-08-27 06:23:12,696 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:23:12,698 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:23:12,705 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:23:12,706 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:23:12,713 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:23:12,714 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:23:12" (1/1) ... [2021-08-27 06:23:12,715 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@5790bcf7 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:12, skipping insertion in model container [2021-08-27 06:23:12,715 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:23:12" (1/1) ... [2021-08-27 06:23:12,721 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:23:12,754 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:23:13,136 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:23:13,156 ERROR L326 MainTranslator]: Unsupported Syntax: Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) [2021-08-27 06:23:13,157 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.CACSL2BoogieTranslatorObserver@39937730 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:13, skipping insertion in model container [2021-08-27 06:23:13,157 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:23:13,158 INFO L184 ToolchainWalker]: Toolchain execution was canceled (user or tool) before executing de.uni_freiburg.informatik.ultimate.boogie.preprocessor [2021-08-27 06:23:13,161 INFO L168 Benchmark]: Toolchain (without parser) took 461.32 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.2 MB in the beginning and 47.8 MB in the end (delta: -17.6 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:13,162 INFO L168 Benchmark]: CDTParser took 0.18 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:23:13,164 INFO L168 Benchmark]: CACSL2BoogieTranslator took 452.78 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.1 MB in the beginning and 47.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:13,166 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.18 ms. Allocated memory is still 54.5 MB. Free memory was 37.1 MB in the beginning and 37.0 MB in the end (delta: 36.6 kB). There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 452.78 ms. Allocated memory was 54.5 MB in the beginning and 67.1 MB in the end (delta: 12.6 MB). Free memory was 30.1 MB in the beginning and 47.8 MB in the end (delta: -17.7 MB). Peak memory consumption was 7.6 MB. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - UnsupportedSyntaxResult [Line: 576]: Unsupported Syntax Found a cast between two array/pointer types where the value type is smaller than the cast-to type while using memory model HoenickeLindenmann_Original (while Not using bitvector translation) RESULT: Ultimate could not prove your program: Toolchain returned no result. Received shutdown request... ### Bit-precise run ### This is Ultimate 0.2.1-dev-20ed64e [2021-08-27 06:23:14,837 INFO L177 SettingsManager]: Resetting all preferences to default values... [2021-08-27 06:23:14,839 INFO L181 SettingsManager]: Resetting UltimateCore preferences to default values [2021-08-27 06:23:14,862 INFO L184 SettingsManager]: Ultimate Commandline Interface provides no preferences, ignoring... [2021-08-27 06:23:14,863 INFO L181 SettingsManager]: Resetting Boogie Preprocessor preferences to default values [2021-08-27 06:23:14,864 INFO L181 SettingsManager]: Resetting Boogie Procedure Inliner preferences to default values [2021-08-27 06:23:14,865 INFO L181 SettingsManager]: Resetting Abstract Interpretation preferences to default values [2021-08-27 06:23:14,867 INFO L181 SettingsManager]: Resetting LassoRanker preferences to default values [2021-08-27 06:23:14,868 INFO L181 SettingsManager]: Resetting Reaching Definitions preferences to default values [2021-08-27 06:23:14,869 INFO L181 SettingsManager]: Resetting SyntaxChecker preferences to default values [2021-08-27 06:23:14,870 INFO L181 SettingsManager]: Resetting Sifa preferences to default values [2021-08-27 06:23:14,871 INFO L184 SettingsManager]: Büchi Program Product provides no preferences, ignoring... [2021-08-27 06:23:14,871 INFO L181 SettingsManager]: Resetting LTL2Aut preferences to default values [2021-08-27 06:23:14,872 INFO L181 SettingsManager]: Resetting PEA to Boogie preferences to default values [2021-08-27 06:23:14,873 INFO L181 SettingsManager]: Resetting BlockEncodingV2 preferences to default values [2021-08-27 06:23:14,874 INFO L181 SettingsManager]: Resetting ChcToBoogie preferences to default values [2021-08-27 06:23:14,875 INFO L181 SettingsManager]: Resetting AutomataScriptInterpreter preferences to default values [2021-08-27 06:23:14,875 INFO L181 SettingsManager]: Resetting BuchiAutomizer preferences to default values [2021-08-27 06:23:14,877 INFO L181 SettingsManager]: Resetting CACSL2BoogieTranslator preferences to default values [2021-08-27 06:23:14,878 INFO L181 SettingsManager]: Resetting CodeCheck preferences to default values [2021-08-27 06:23:14,880 INFO L181 SettingsManager]: Resetting InvariantSynthesis preferences to default values [2021-08-27 06:23:14,881 INFO L181 SettingsManager]: Resetting RCFGBuilder preferences to default values [2021-08-27 06:23:14,882 INFO L181 SettingsManager]: Resetting Referee preferences to default values [2021-08-27 06:23:14,883 INFO L181 SettingsManager]: Resetting TraceAbstraction preferences to default values [2021-08-27 06:23:14,885 INFO L184 SettingsManager]: TraceAbstractionConcurrent provides no preferences, ignoring... [2021-08-27 06:23:14,887 INFO L184 SettingsManager]: TraceAbstractionWithAFAs provides no preferences, ignoring... [2021-08-27 06:23:14,887 INFO L181 SettingsManager]: Resetting TreeAutomizer preferences to default values [2021-08-27 06:23:14,888 INFO L181 SettingsManager]: Resetting IcfgToChc preferences to default values [2021-08-27 06:23:14,889 INFO L181 SettingsManager]: Resetting IcfgTransformer preferences to default values [2021-08-27 06:23:14,889 INFO L184 SettingsManager]: ReqToTest provides no preferences, ignoring... [2021-08-27 06:23:14,890 INFO L181 SettingsManager]: Resetting Boogie Printer preferences to default values [2021-08-27 06:23:14,890 INFO L181 SettingsManager]: Resetting ChcSmtPrinter preferences to default values [2021-08-27 06:23:14,891 INFO L181 SettingsManager]: Resetting ReqPrinter preferences to default values [2021-08-27 06:23:14,891 INFO L181 SettingsManager]: Resetting Witness Printer preferences to default values [2021-08-27 06:23:14,892 INFO L184 SettingsManager]: Boogie PL CUP Parser provides no preferences, ignoring... [2021-08-27 06:23:14,892 INFO L181 SettingsManager]: Resetting CDTParser preferences to default values [2021-08-27 06:23:14,893 INFO L184 SettingsManager]: AutomataScriptParser provides no preferences, ignoring... [2021-08-27 06:23:14,893 INFO L184 SettingsManager]: ReqParser provides no preferences, ignoring... [2021-08-27 06:23:14,893 INFO L181 SettingsManager]: Resetting SmtParser preferences to default values [2021-08-27 06:23:14,894 INFO L181 SettingsManager]: Resetting Witness Parser preferences to default values [2021-08-27 06:23:14,895 INFO L188 SettingsManager]: Finished resetting all preferences to default values... [2021-08-27 06:23:14,902 INFO L101 SettingsManager]: Beginning loading settings from /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/config/svcomp-DerefFreeMemtrack-32bit-Automizer_Bitvector.epf [2021-08-27 06:23:14,950 INFO L113 SettingsManager]: Loading preferences was successful [2021-08-27 06:23:14,952 INFO L115 SettingsManager]: Preferences different from defaults after loading the file: [2021-08-27 06:23:14,953 INFO L136 SettingsManager]: Preferences of UltimateCore differ from their defaults: [2021-08-27 06:23:14,953 INFO L138 SettingsManager]: * Log level for class=de.uni_freiburg.informatik.ultimate.lib.smtlibutils.quantifier.QuantifierPusher=ERROR; [2021-08-27 06:23:14,955 INFO L136 SettingsManager]: Preferences of BlockEncodingV2 differ from their defaults: [2021-08-27 06:23:14,956 INFO L138 SettingsManager]: * Create parallel compositions if possible=false [2021-08-27 06:23:14,956 INFO L138 SettingsManager]: * Use SBE=true [2021-08-27 06:23:14,956 INFO L136 SettingsManager]: Preferences of CACSL2BoogieTranslator differ from their defaults: [2021-08-27 06:23:14,956 INFO L138 SettingsManager]: * sizeof long=4 [2021-08-27 06:23:14,957 INFO L138 SettingsManager]: * Check unreachability of error function in SV-COMP mode=false [2021-08-27 06:23:14,957 INFO L138 SettingsManager]: * Overapproximate operations on floating types=true [2021-08-27 06:23:14,958 INFO L138 SettingsManager]: * sizeof POINTER=4 [2021-08-27 06:23:14,958 INFO L138 SettingsManager]: * Check division by zero=IGNORE [2021-08-27 06:23:14,958 INFO L138 SettingsManager]: * Check for the main procedure if all allocated memory was freed=true [2021-08-27 06:23:14,958 INFO L138 SettingsManager]: * Bitprecise bitfields=true [2021-08-27 06:23:14,958 INFO L138 SettingsManager]: * SV-COMP memtrack compatibility mode=true [2021-08-27 06:23:14,959 INFO L138 SettingsManager]: * If two pointers are subtracted or compared they have the same base address=IGNORE [2021-08-27 06:23:14,959 INFO L138 SettingsManager]: * Adapt memory model on pointer casts if necessary=true [2021-08-27 06:23:14,959 INFO L138 SettingsManager]: * Use bitvectors instead of ints=true [2021-08-27 06:23:14,959 INFO L138 SettingsManager]: * Memory model=HoenickeLindenmann_4ByteResolution [2021-08-27 06:23:14,959 INFO L138 SettingsManager]: * sizeof long double=12 [2021-08-27 06:23:14,959 INFO L138 SettingsManager]: * Use constant arrays=true [2021-08-27 06:23:14,960 INFO L136 SettingsManager]: Preferences of RCFGBuilder differ from their defaults: [2021-08-27 06:23:14,960 INFO L138 SettingsManager]: * Size of a code block=SequenceOfStatements [2021-08-27 06:23:14,960 INFO L138 SettingsManager]: * SMT solver=External_DefaultMode [2021-08-27 06:23:14,960 INFO L138 SettingsManager]: * Command for external solver=z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:23:14,960 INFO L136 SettingsManager]: Preferences of TraceAbstraction differ from their defaults: [2021-08-27 06:23:14,961 INFO L138 SettingsManager]: * Compute Interpolants along a Counterexample=FPandBP [2021-08-27 06:23:14,961 INFO L138 SettingsManager]: * Trace refinement strategy=WOLF [2021-08-27 06:23:14,961 INFO L138 SettingsManager]: * Command for external solver=cvc4 --incremental --print-success --lang smt [2021-08-27 06:23:14,961 INFO L138 SettingsManager]: * Trace refinement exception blacklist=NONE [2021-08-27 06:23:14,961 INFO L138 SettingsManager]: * SMT solver=External_ModelsAndUnsatCoreMode [2021-08-27 06:23:14,962 INFO L138 SettingsManager]: * Logic for external solver=AUFBV WARNING: An illegal reflective access operation has occurred WARNING: Illegal reflective access by com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 (file:/storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/plugins/com.sun.xml.bind_2.2.0.v201505121915.jar) to method java.lang.ClassLoader.defineClass(java.lang.String,byte[],int,int) WARNING: Please consider reporting this to the maintainers of com.sun.xml.bind.v2.runtime.reflect.opt.Injector$1 WARNING: Use --illegal-access=warn to enable warnings of further illegal reflective access operations WARNING: All illegal access operations will be denied in a future release Applying setting for plugin de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: Entry function -> main Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness directory -> /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Witness filename -> witness.graphml Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Write witness besides input file -> false Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data specification -> CHECK( init(main()), LTL(G valid-free) ) CHECK( init(main()), LTL(G valid-deref) ) CHECK( init(main()), LTL(G valid-memtrack) ) Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data producer -> Automizer Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data architecture -> 32bit Applying setting for plugin de.uni_freiburg.informatik.ultimate.witnessprinter: Graph data programhash -> eb6bcc62184a60bbcb9e0528a455aeb84b21f101 [2021-08-27 06:23:15,294 INFO L75 nceAwareModelManager]: Repository-Root is: /tmp [2021-08-27 06:23:15,313 INFO L261 ainManager$Toolchain]: [Toolchain 1]: Applicable parser(s) successfully (re)initialized [2021-08-27 06:23:15,316 INFO L217 ainManager$Toolchain]: [Toolchain 1]: Toolchain selected. [2021-08-27 06:23:15,317 INFO L271 PluginConnector]: Initializing CDTParser... [2021-08-27 06:23:15,318 INFO L275 PluginConnector]: CDTParser initialized [2021-08-27 06:23:15,319 INFO L432 ainManager$Toolchain]: [Toolchain 1]: Parsing single file: /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/../sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-08-27 06:23:15,385 INFO L220 CDTParser]: Created temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e645b8f/1afa03f1e00847899a34b087596667e6/FLAG82fd8fe37 [2021-08-27 06:23:15,839 INFO L306 CDTParser]: Found 1 translation units. [2021-08-27 06:23:15,839 INFO L160 CDTParser]: Scanning /storage/repos/ultimate/releaseScripts/default/sv-benchmarks/c/ldv-memsafety/memleaks_test4-1.i [2021-08-27 06:23:15,854 INFO L349 CDTParser]: About to delete temporary CDT project at /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e645b8f/1afa03f1e00847899a34b087596667e6/FLAG82fd8fe37 [2021-08-27 06:23:16,165 INFO L357 CDTParser]: Successfully deleted /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/data/b5e645b8f/1afa03f1e00847899a34b087596667e6 [2021-08-27 06:23:16,168 INFO L299 ainManager$Toolchain]: ####################### [Toolchain 1] ####################### [2021-08-27 06:23:16,169 INFO L131 ToolchainWalker]: Walking toolchain with 5 elements. [2021-08-27 06:23:16,170 INFO L113 PluginConnector]: ------------------------CACSL2BoogieTranslator---------------------------- [2021-08-27 06:23:16,170 INFO L271 PluginConnector]: Initializing CACSL2BoogieTranslator... [2021-08-27 06:23:16,174 INFO L275 PluginConnector]: CACSL2BoogieTranslator initialized [2021-08-27 06:23:16,174 INFO L185 PluginConnector]: Executing the observer ACSLObjectContainerObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,175 INFO L205 PluginConnector]: Invalid model from CACSL2BoogieTranslator for observer de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator.ACSLObjectContainerObserver@501f6f4a and model type de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16, skipping insertion in model container [2021-08-27 06:23:16,176 INFO L185 PluginConnector]: Executing the observer CACSL2BoogieTranslatorObserver from plugin CACSL2BoogieTranslator for "CDTParser AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,182 INFO L145 MainTranslator]: Starting translation in SV-COMP mode [2021-08-27 06:23:16,227 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:23:16,584 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:23:16,599 INFO L200 MainTranslator]: Restarting translation with changed settings: SettingsChange [mNewPreferredMemoryModel=HoenickeLindenmann_1ByteResolution] [2021-08-27 06:23:16,606 INFO L178 MainTranslator]: Built tables and reachable declarations [2021-08-27 06:23:16,636 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:23:16,642 INFO L203 MainTranslator]: Completed pre-run [2021-08-27 06:23:16,686 INFO L206 PostProcessor]: Analyzing one entry point: main [2021-08-27 06:23:16,735 INFO L208 MainTranslator]: Completed translation [2021-08-27 06:23:16,736 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16 WrapperNode [2021-08-27 06:23:16,737 INFO L132 PluginConnector]: ------------------------ END CACSL2BoogieTranslator---------------------------- [2021-08-27 06:23:16,739 INFO L113 PluginConnector]: ------------------------Boogie Preprocessor---------------------------- [2021-08-27 06:23:16,739 INFO L271 PluginConnector]: Initializing Boogie Preprocessor... [2021-08-27 06:23:16,739 INFO L275 PluginConnector]: Boogie Preprocessor initialized [2021-08-27 06:23:16,748 INFO L185 PluginConnector]: Executing the observer EnsureBoogieModelObserver from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,749 INFO L185 PluginConnector]: Executing the observer TypeChecker from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,789 INFO L185 PluginConnector]: Executing the observer ConstExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,790 INFO L185 PluginConnector]: Executing the observer StructExpander from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,843 INFO L185 PluginConnector]: Executing the observer UnstructureCode from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,847 INFO L185 PluginConnector]: Executing the observer FunctionInliner from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,852 INFO L185 PluginConnector]: Executing the observer BoogieSymbolTableConstructor from plugin Boogie Preprocessor for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,860 INFO L132 PluginConnector]: ------------------------ END Boogie Preprocessor---------------------------- [2021-08-27 06:23:16,869 INFO L113 PluginConnector]: ------------------------RCFGBuilder---------------------------- [2021-08-27 06:23:16,870 INFO L271 PluginConnector]: Initializing RCFGBuilder... [2021-08-27 06:23:16,870 INFO L275 PluginConnector]: RCFGBuilder initialized [2021-08-27 06:23:16,871 INFO L185 PluginConnector]: Executing the observer RCFGBuilderObserver from plugin RCFGBuilder for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (1/1) ... [2021-08-27 06:23:16,877 INFO L170 SolverBuilder]: Constructing external solver with command: z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 [2021-08-27 06:23:16,885 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 [2021-08-27 06:23:16,902 INFO L229 MonitoredProcess]: Starting monitored process 1 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (exit command is (exit), workingDir is null) [2021-08-27 06:23:16,933 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Waiting until timeout for monitored process [2021-08-27 06:23:16,955 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.init [2021-08-27 06:23:16,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.start [2021-08-27 06:23:16,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:23:16,957 INFO L138 BoogieDeclarations]: Found implementation of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:23:16,957 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_32 [2021-08-27 06:23:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __bswap_64 [2021-08-27 06:23:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint16_identity [2021-08-27 06:23:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint32_identity [2021-08-27 06:23:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure __uint64_identity [2021-08-27 06:23:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_nonpositive [2021-08-27 06:23:16,959 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_positive [2021-08-27 06:23:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_malloc [2021-08-27 06:23:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_zalloc [2021-08-27 06:23:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:23:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_add [2021-08-27 06:23:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure __ldv_list_del [2021-08-27 06:23:16,960 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add [2021-08-27 06:23:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_add_tail [2021-08-27 06:23:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_list_del [2021-08-27 06:23:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_alloc [2021-08-27 06:23:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_fill [2021-08-27 06:23:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_msg_free [2021-08-27 06:23:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_submit_msg [2021-08-27 06:23:16,961 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_destroy_msgs [2021-08-27 06:23:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_get_drvdata [2021-08-27 06:23:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_dev_set_drvdata [2021-08-27 06:23:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_add_return [2021-08-27 06:23:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_atomic_sub_return [2021-08-27 06:23:16,962 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_sub [2021-08-27 06:23:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_init [2021-08-27 06:23:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_get [2021-08-27 06:23:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kref_put [2021-08-27 06:23:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_del [2021-08-27 06:23:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_cleanup [2021-08-27 06:23:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_release [2021-08-27 06:23:16,963 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_put [2021-08-27 06:23:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_get [2021-08-27 06:23:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init_internal [2021-08-27 06:23:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_init [2021-08-27 06:23:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure ldv_kobject_create [2021-08-27 06:23:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure f [2021-08-27 06:23:16,964 INFO L138 BoogieDeclarations]: Found implementation of procedure g [2021-08-27 06:23:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure entry_point [2021-08-27 06:23:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure main [2021-08-27 06:23:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memset [2021-08-27 06:23:16,965 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.meminit [2021-08-27 06:23:16,966 INFO L138 BoogieDeclarations]: Found implementation of procedure #Ultimate.C_memcpy [2021-08-27 06:23:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure __ctype_get_mb_cur_max [2021-08-27 06:23:16,966 INFO L130 BoogieDeclarations]: Found specification of procedure atof [2021-08-27 06:23:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure atoi [2021-08-27 06:23:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure atol [2021-08-27 06:23:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure atoll [2021-08-27 06:23:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtod [2021-08-27 06:23:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtof [2021-08-27 06:23:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtold [2021-08-27 06:23:16,967 INFO L130 BoogieDeclarations]: Found specification of procedure strtol [2021-08-27 06:23:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtoul [2021-08-27 06:23:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtoq [2021-08-27 06:23:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtouq [2021-08-27 06:23:16,968 INFO L130 BoogieDeclarations]: Found specification of procedure strtoll [2021-08-27 06:23:16,969 INFO L130 BoogieDeclarations]: Found specification of procedure strtoull [2021-08-27 06:23:16,969 INFO L130 BoogieDeclarations]: Found specification of procedure l64a [2021-08-27 06:23:16,970 INFO L130 BoogieDeclarations]: Found specification of procedure a64l [2021-08-27 06:23:16,970 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_32 [2021-08-27 06:23:16,970 INFO L130 BoogieDeclarations]: Found specification of procedure __bswap_64 [2021-08-27 06:23:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure __uint16_identity [2021-08-27 06:23:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure __uint32_identity [2021-08-27 06:23:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure __uint64_identity [2021-08-27 06:23:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure select [2021-08-27 06:23:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure pselect [2021-08-27 06:23:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_major [2021-08-27 06:23:16,971 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_minor [2021-08-27 06:23:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure gnu_dev_makedev [2021-08-27 06:23:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure random [2021-08-27 06:23:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure srandom [2021-08-27 06:23:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure initstate [2021-08-27 06:23:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure setstate [2021-08-27 06:23:16,972 INFO L130 BoogieDeclarations]: Found specification of procedure random_r [2021-08-27 06:23:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure srandom_r [2021-08-27 06:23:16,973 INFO L130 BoogieDeclarations]: Found specification of procedure initstate_r [2021-08-27 06:23:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure setstate_r [2021-08-27 06:23:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure rand [2021-08-27 06:23:16,975 INFO L130 BoogieDeclarations]: Found specification of procedure srand [2021-08-27 06:23:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure rand_r [2021-08-27 06:23:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure drand48 [2021-08-27 06:23:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure erand48 [2021-08-27 06:23:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48 [2021-08-27 06:23:16,976 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48 [2021-08-27 06:23:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48 [2021-08-27 06:23:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48 [2021-08-27 06:23:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure srand48 [2021-08-27 06:23:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure seed48 [2021-08-27 06:23:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48 [2021-08-27 06:23:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure drand48_r [2021-08-27 06:23:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure erand48_r [2021-08-27 06:23:16,977 INFO L130 BoogieDeclarations]: Found specification of procedure lrand48_r [2021-08-27 06:23:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure nrand48_r [2021-08-27 06:23:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure mrand48_r [2021-08-27 06:23:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure jrand48_r [2021-08-27 06:23:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure srand48_r [2021-08-27 06:23:16,978 INFO L130 BoogieDeclarations]: Found specification of procedure seed48_r [2021-08-27 06:23:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure lcong48_r [2021-08-27 06:23:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure malloc [2021-08-27 06:23:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure calloc [2021-08-27 06:23:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure realloc [2021-08-27 06:23:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure free [2021-08-27 06:23:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure alloca [2021-08-27 06:23:16,979 INFO L130 BoogieDeclarations]: Found specification of procedure valloc [2021-08-27 06:23:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure posix_memalign [2021-08-27 06:23:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure aligned_alloc [2021-08-27 06:23:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure abort [2021-08-27 06:23:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure atexit [2021-08-27 06:23:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure at_quick_exit [2021-08-27 06:23:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure on_exit [2021-08-27 06:23:16,980 INFO L130 BoogieDeclarations]: Found specification of procedure exit [2021-08-27 06:23:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure quick_exit [2021-08-27 06:23:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure _Exit [2021-08-27 06:23:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure getenv [2021-08-27 06:23:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure putenv [2021-08-27 06:23:16,981 INFO L130 BoogieDeclarations]: Found specification of procedure setenv [2021-08-27 06:23:16,982 INFO L130 BoogieDeclarations]: Found specification of procedure unsetenv [2021-08-27 06:23:16,982 INFO L130 BoogieDeclarations]: Found specification of procedure clearenv [2021-08-27 06:23:16,982 INFO L130 BoogieDeclarations]: Found specification of procedure mktemp [2021-08-27 06:23:16,983 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemp [2021-08-27 06:23:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkstemps [2021-08-27 06:23:16,985 INFO L130 BoogieDeclarations]: Found specification of procedure mkdtemp [2021-08-27 06:23:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure system [2021-08-27 06:23:16,986 INFO L130 BoogieDeclarations]: Found specification of procedure realpath [2021-08-27 06:23:16,987 INFO L130 BoogieDeclarations]: Found specification of procedure bsearch [2021-08-27 06:23:16,987 INFO L130 BoogieDeclarations]: Found specification of procedure qsort [2021-08-27 06:23:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure abs [2021-08-27 06:23:16,988 INFO L130 BoogieDeclarations]: Found specification of procedure labs [2021-08-27 06:23:16,989 INFO L130 BoogieDeclarations]: Found specification of procedure llabs [2021-08-27 06:23:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure div [2021-08-27 06:23:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure ldiv [2021-08-27 06:23:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure lldiv [2021-08-27 06:23:16,994 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt [2021-08-27 06:23:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt [2021-08-27 06:23:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure gcvt [2021-08-27 06:23:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt [2021-08-27 06:23:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt [2021-08-27 06:23:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure qgcvt [2021-08-27 06:23:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure ecvt_r [2021-08-27 06:23:16,995 INFO L130 BoogieDeclarations]: Found specification of procedure fcvt_r [2021-08-27 06:23:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure qecvt_r [2021-08-27 06:23:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure qfcvt_r [2021-08-27 06:23:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure mblen [2021-08-27 06:23:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure mbtowc [2021-08-27 06:23:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure wctomb [2021-08-27 06:23:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure mbstowcs [2021-08-27 06:23:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure wcstombs [2021-08-27 06:23:16,996 INFO L130 BoogieDeclarations]: Found specification of procedure rpmatch [2021-08-27 06:23:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure getsubopt [2021-08-27 06:23:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure getloadavg [2021-08-27 06:23:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure kfree [2021-08-27 06:23:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure __VERIFIER_nondet_int [2021-08-27 06:23:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_nonpositive [2021-08-27 06:23:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_positive [2021-08-27 06:23:16,997 INFO L130 BoogieDeclarations]: Found specification of procedure memcpy [2021-08-27 06:23:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure memset [2021-08-27 06:23:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_malloc [2021-08-27 06:23:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnHeap [2021-08-27 06:23:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_zalloc [2021-08-27 06:23:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.meminit [2021-08-27 06:23:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure LDV_INIT_LIST_HEAD [2021-08-27 06:23:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure write~$Pointer$ [2021-08-27 06:23:16,998 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_add [2021-08-27 06:23:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure __ldv_list_del [2021-08-27 06:23:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add [2021-08-27 06:23:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure read~$Pointer$ [2021-08-27 06:23:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_add_tail [2021-08-27 06:23:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_list_del [2021-08-27 06:23:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_alloc [2021-08-27 06:23:16,999 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_fill [2021-08-27 06:23:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memcpy [2021-08-27 06:23:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_msg_free [2021-08-27 06:23:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.dealloc [2021-08-27 06:23:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_submit_msg [2021-08-27 06:23:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_destroy_msgs [2021-08-27 06:23:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_get_drvdata [2021-08-27 06:23:17,000 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_dev_set_drvdata [2021-08-27 06:23:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_add_return [2021-08-27 06:23:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure read~intINTTYPE4 [2021-08-27 06:23:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure write~intINTTYPE4 [2021-08-27 06:23:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_atomic_sub_return [2021-08-27 06:23:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_sub [2021-08-27 06:23:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ##fun~$Pointer$~TO~VOID [2021-08-27 06:23:17,001 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_init [2021-08-27 06:23:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_get [2021-08-27 06:23:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kref_put [2021-08-27 06:23:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_del [2021-08-27 06:23:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_cleanup [2021-08-27 06:23:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_release [2021-08-27 06:23:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_put [2021-08-27 06:23:17,002 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_get [2021-08-27 06:23:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init_internal [2021-08-27 06:23:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_init [2021-08-27 06:23:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure ldv_kobject_create [2021-08-27 06:23:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.C_memset [2021-08-27 06:23:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure f [2021-08-27 06:23:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure g [2021-08-27 06:23:17,003 INFO L130 BoogieDeclarations]: Found specification of procedure entry_point [2021-08-27 06:23:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure main [2021-08-27 06:23:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.init [2021-08-27 06:23:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure #Ultimate.allocOnStack [2021-08-27 06:23:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~init~$Pointer$ [2021-08-27 06:23:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.start [2021-08-27 06:23:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure ULTIMATE.setCurrentRoundingMode [2021-08-27 06:23:17,004 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~intINTTYPE4 [2021-08-27 06:23:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~intINTTYPE4 [2021-08-27 06:23:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure write~unchecked~$Pointer$ [2021-08-27 06:23:17,005 INFO L130 BoogieDeclarations]: Found specification of procedure read~unchecked~$Pointer$ [2021-08-27 06:23:17,703 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:23:18,101 WARN L805 $ProcedureCfgBuilder]: Label in the middle of a codeblock. [2021-08-27 06:23:18,407 INFO L294 CfgBuilder]: Using the 1 location(s) as analysis (start of procedure ULTIMATE.start) [2021-08-27 06:23:18,407 INFO L299 CfgBuilder]: Removed 1 assume(true) statements. [2021-08-27 06:23:18,410 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:23:18 BoogieIcfgContainer [2021-08-27 06:23:18,410 INFO L132 PluginConnector]: ------------------------ END RCFGBuilder---------------------------- [2021-08-27 06:23:18,411 INFO L113 PluginConnector]: ------------------------TraceAbstraction---------------------------- [2021-08-27 06:23:18,411 INFO L271 PluginConnector]: Initializing TraceAbstraction... [2021-08-27 06:23:18,413 INFO L275 PluginConnector]: TraceAbstraction initialized [2021-08-27 06:23:18,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "CDTParser AST 27.08 06:23:16" (1/3) ... [2021-08-27 06:23:18,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468c7f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:23:18, skipping insertion in model container [2021-08-27 06:23:18,414 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator AST 27.08 06:23:16" (2/3) ... [2021-08-27 06:23:18,414 INFO L205 PluginConnector]: Invalid model from TraceAbstraction for observer de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction.TraceAbstractionObserver@468c7f77 and model type de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction AST 27.08 06:23:18, skipping insertion in model container [2021-08-27 06:23:18,415 INFO L185 PluginConnector]: Executing the observer TraceAbstractionObserver from plugin TraceAbstraction for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:23:18" (3/3) ... [2021-08-27 06:23:18,416 INFO L111 eAbstractionObserver]: Analyzing ICFG memleaks_test4-1.i [2021-08-27 06:23:18,419 INFO L204 ceAbstractionStarter]: Automizer settings: Hoare:false NWA Interpolation:FPandBP Determinization: PREDICATE_ABSTRACTION [2021-08-27 06:23:18,420 INFO L163 ceAbstractionStarter]: Applying trace abstraction to program that has 74 error locations. [2021-08-27 06:23:18,453 INFO L338 AbstractCegarLoop]: ======== Iteration 0 == of CEGAR loop == AllErrorsAtOnce ======== [2021-08-27 06:23:18,458 INFO L339 AbstractCegarLoop]: Settings: SEPARATE_VIOLATION_CHECK=true, mInterprocedural=true, mMaxIterations=1000000, mWatchIteration=1000000, mArtifact=RCFG, mInterpolation=FPandBP, mInterpolantAutomaton=STRAIGHT_LINE, mDumpAutomata=false, mAutomataFormat=ATS_NUMERATE, mDumpPath=., mDeterminiation=PREDICATE_ABSTRACTION, mMinimize=MINIMIZE_SEVPA, mHoare=false, mConcurrency=FINITE_AUTOMATA, mHoareTripleChecks=INCREMENTAL, mHoareAnnotationPositions=All, mDumpOnlyReuseAutomata=false, mLimitTraceHistogram=0, mErrorLocTimeLimit=0, mLimitPathProgramCount=0, mCollectInterpolantStatistics=true, mHeuristicEmptinessCheck=false, mHeuristicEmptinessCheckAStarHeuristic=ZERO, mHeuristicEmptinessCheckAStarHeuristicRandomSeed=1337, mHeuristicEmptinessCheckSmtFeatureScoringMethod=DAGSIZE, mSMTFeatureExtraction=false, mSMTFeatureExtractionDumpPath=., mOverrideInterpolantAutomaton=false, mMcrInterpolantMethod=WP, mLoopAccelerationTechnique=FAST_UPR [2021-08-27 06:23:18,458 INFO L340 AbstractCegarLoop]: Starting to check reachability of 74 error locations. [2021-08-27 06:23:18,471 INFO L276 IsEmpty]: Start isEmpty. Operand has 98 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) [2021-08-27 06:23:18,476 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-27 06:23:18,477 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:23:18,477 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:23:18,478 INFO L402 AbstractCegarLoop]: === Iteration 1 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:23:18,482 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:23:18,482 INFO L82 PathProgramCache]: Analyzing trace with hash 927863930, now seen corresponding path program 1 times [2021-08-27 06:23:18,491 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:23:18,491 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [292974107] [2021-08-27 06:23:18,492 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:18,492 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:23:18,492 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:23:18,495 INFO L229 MonitoredProcess]: Starting monitored process 2 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:23:18,514 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Waiting until timeout for monitored process [2021-08-27 06:23:18,805 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:23:18,808 INFO L263 TraceCheckSpWp]: Trace formula consists of 66 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:23:18,812 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:23:18,935 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:23:18,936 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:23:19,066 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:23:19,067 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:23:19,067 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [292974107] [2021-08-27 06:23:19,068 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [292974107] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:23:19,068 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:23:19,068 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [5, 5] imperfect sequences [] total 5 [2021-08-27 06:23:19,070 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1452888304] [2021-08-27 06:23:19,074 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:23:19,074 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:23:19,084 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:23:19,085 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:23:19,087 INFO L87 Difference]: Start difference. First operand has 98 states, 54 states have (on average 1.5185185185185186) internal successors, (82), 75 states have internal predecessors, (82), 12 states have call successors, (12), 10 states have call predecessors, (12), 10 states have return successors, (12), 12 states have call predecessors, (12), 12 states have call successors, (12) Second operand has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:23:19,116 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:23:19,116 INFO L93 Difference]: Finished difference Result 42 states and 47 transitions. [2021-08-27 06:23:19,117 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:23:19,118 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) Word has length 16 [2021-08-27 06:23:19,118 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:23:19,125 INFO L225 Difference]: With dead ends: 42 [2021-08-27 06:23:19,125 INFO L226 Difference]: Without dead ends: 39 [2021-08-27 06:23:19,126 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 28 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 15.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:23:19,136 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 39 states. [2021-08-27 06:23:19,149 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 39 to 29. [2021-08-27 06:23:19,150 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 16 states have (on average 1.3125) internal successors, (21), 19 states have internal predecessors, (21), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:23:19,151 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 32 transitions. [2021-08-27 06:23:19,152 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 32 transitions. Word has length 16 [2021-08-27 06:23:19,152 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:23:19,152 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 32 transitions. [2021-08-27 06:23:19,152 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 5 states have (on average 1.8) internal successors, (9), 4 states have internal predecessors, (9), 1 states have call successors, (4), 1 states have call predecessors, (4), 3 states have return successors, (3), 3 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:23:19,153 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 32 transitions. [2021-08-27 06:23:19,154 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 17 [2021-08-27 06:23:19,154 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:23:19,154 INFO L512 BasicCegarLoop]: trace histogram [1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:23:19,164 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (2)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:19,358 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 2 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:23:19,358 INFO L402 AbstractCegarLoop]: === Iteration 2 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:23:19,359 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:23:19,359 INFO L82 PathProgramCache]: Analyzing trace with hash -1624293031, now seen corresponding path program 1 times [2021-08-27 06:23:19,359 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:23:19,359 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1002609823] [2021-08-27 06:23:19,360 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:19,360 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:23:19,360 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:23:19,362 INFO L229 MonitoredProcess]: Starting monitored process 3 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:23:19,363 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Waiting until timeout for monitored process [2021-08-27 06:23:19,537 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:23:19,539 INFO L263 TraceCheckSpWp]: Trace formula consists of 62 conjuncts, 6 conjunts are in the unsatisfiable core [2021-08-27 06:23:19,540 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:23:19,611 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:23:19,611 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:23:19,723 INFO L134 CoverageAnalysis]: Checked inductivity of 0 backedges. 0 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:23:19,723 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:23:19,723 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1002609823] [2021-08-27 06:23:19,723 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1002609823] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:23:19,723 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:23:19,724 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [2, 2] imperfect sequences [] total 2 [2021-08-27 06:23:19,724 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1079442287] [2021-08-27 06:23:19,725 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 3 states [2021-08-27 06:23:19,725 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:23:19,726 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 3 interpolants. [2021-08-27 06:23:19,726 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:23:19,726 INFO L87 Difference]: Start difference. First operand 29 states and 32 transitions. Second operand has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:23:19,767 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:23:19,767 INFO L93 Difference]: Finished difference Result 40 states and 44 transitions. [2021-08-27 06:23:19,768 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 3 states. [2021-08-27 06:23:19,768 INFO L78 Accepts]: Start accepts. Automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) Word has length 16 [2021-08-27 06:23:19,768 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:23:19,769 INFO L225 Difference]: With dead ends: 40 [2021-08-27 06:23:19,769 INFO L226 Difference]: Without dead ends: 37 [2021-08-27 06:23:19,770 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 31 GetRequests, 30 SyntacticMatches, 0 SemanticMatches, 1 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 2.7ms TimeCoverageRelationStatistics Valid=3, Invalid=3, Unknown=0, NotChecked=0, Total=6 [2021-08-27 06:23:19,770 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 37 states. [2021-08-27 06:23:19,773 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 37 to 25. [2021-08-27 06:23:19,773 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 25 states, 13 states have (on average 1.3076923076923077) internal successors, (17), 16 states have internal predecessors, (17), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-27 06:23:19,773 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 25 states to 25 states and 26 transitions. [2021-08-27 06:23:19,774 INFO L78 Accepts]: Start accepts. Automaton has 25 states and 26 transitions. Word has length 16 [2021-08-27 06:23:19,774 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:23:19,774 INFO L470 AbstractCegarLoop]: Abstraction has 25 states and 26 transitions. [2021-08-27 06:23:19,774 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 3 states, 2 states have (on average 4.5) internal successors, (9), 3 states have internal predecessors, (9), 2 states have call successors, (4), 2 states have call predecessors, (4), 2 states have return successors, (3), 2 states have call predecessors, (3), 2 states have call successors, (3) [2021-08-27 06:23:19,774 INFO L276 IsEmpty]: Start isEmpty. Operand 25 states and 26 transitions. [2021-08-27 06:23:19,775 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 21 [2021-08-27 06:23:19,775 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:23:19,775 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:23:19,788 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (3)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:19,983 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 3 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:23:19,984 INFO L402 AbstractCegarLoop]: === Iteration 3 === Targeting entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:23:19,985 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:23:19,985 INFO L82 PathProgramCache]: Analyzing trace with hash -1911181477, now seen corresponding path program 1 times [2021-08-27 06:23:19,985 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:23:19,985 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [254573967] [2021-08-27 06:23:19,985 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:19,985 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:23:19,986 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:23:19,986 INFO L229 MonitoredProcess]: Starting monitored process 4 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:23:19,988 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Waiting until timeout for monitored process [2021-08-27 06:23:20,176 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:23:20,179 INFO L263 TraceCheckSpWp]: Trace formula consists of 81 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:23:20,180 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:23:20,262 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:23:20,262 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:23:20,340 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:23:20,340 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:23:20,341 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [254573967] [2021-08-27 06:23:20,341 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [254573967] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:23:20,341 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:23:20,341 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:23:20,341 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [561274244] [2021-08-27 06:23:20,341 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:23:20,342 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:23:20,342 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:23:20,342 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:23:20,342 INFO L87 Difference]: Start difference. First operand 25 states and 26 transitions. Second operand has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:23:20,354 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:23:20,354 INFO L93 Difference]: Finished difference Result 24 states and 25 transitions. [2021-08-27 06:23:20,354 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:23:20,354 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 20 [2021-08-27 06:23:20,355 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:23:20,355 INFO L225 Difference]: With dead ends: 24 [2021-08-27 06:23:20,355 INFO L226 Difference]: Without dead ends: 24 [2021-08-27 06:23:20,355 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 39 GetRequests, 36 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.5ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:23:20,355 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 24 states. [2021-08-27 06:23:20,357 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 24 to 24. [2021-08-27 06:23:20,357 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 24 states, 13 states have (on average 1.2307692307692308) internal successors, (16), 15 states have internal predecessors, (16), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-27 06:23:20,358 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 24 states to 24 states and 25 transitions. [2021-08-27 06:23:20,358 INFO L78 Accepts]: Start accepts. Automaton has 24 states and 25 transitions. Word has length 20 [2021-08-27 06:23:20,358 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:23:20,359 INFO L470 AbstractCegarLoop]: Abstraction has 24 states and 25 transitions. [2021-08-27 06:23:20,359 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 2.75) internal successors, (11), 4 states have internal predecessors, (11), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:23:20,359 INFO L276 IsEmpty]: Start isEmpty. Operand 24 states and 25 transitions. [2021-08-27 06:23:20,359 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 22 [2021-08-27 06:23:20,359 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:23:20,359 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:23:20,371 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (4)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:20,568 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 4 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:23:20,569 INFO L402 AbstractCegarLoop]: === Iteration 4 === Targeting entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:23:20,569 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:23:20,569 INFO L82 PathProgramCache]: Analyzing trace with hash 882916751, now seen corresponding path program 1 times [2021-08-27 06:23:20,569 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:23:20,570 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [1938661996] [2021-08-27 06:23:20,570 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:20,570 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:23:20,570 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:23:20,571 INFO L229 MonitoredProcess]: Starting monitored process 5 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:23:20,573 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Waiting until timeout for monitored process [2021-08-27 06:23:20,767 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:23:20,770 INFO L263 TraceCheckSpWp]: Trace formula consists of 82 conjuncts, 7 conjunts are in the unsatisfiable core [2021-08-27 06:23:20,771 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:23:21,188 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 4 proven. 0 refuted. 0 times theorem prover too weak. 0 trivial. 0 not checked. [2021-08-27 06:23:21,189 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:23:21,342 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:23:21,343 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:23:21,343 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [1938661996] [2021-08-27 06:23:21,343 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [1938661996] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:23:21,343 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:23:21,343 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [6, 4] imperfect sequences [] total 9 [2021-08-27 06:23:21,343 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1713887857] [2021-08-27 06:23:21,344 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 10 states [2021-08-27 06:23:21,344 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:23:21,344 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 10 interpolants. [2021-08-27 06:23:21,345 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:23:21,345 INFO L87 Difference]: Start difference. First operand 24 states and 25 transitions. Second operand has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:23:21,488 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:23:21,488 INFO L93 Difference]: Finished difference Result 38 states and 42 transitions. [2021-08-27 06:23:21,490 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 10 states. [2021-08-27 06:23:21,491 INFO L78 Accepts]: Start accepts. Automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) Word has length 21 [2021-08-27 06:23:21,491 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:23:21,491 INFO L225 Difference]: With dead ends: 38 [2021-08-27 06:23:21,491 INFO L226 Difference]: Without dead ends: 38 [2021-08-27 06:23:21,492 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 41 GetRequests, 33 SyntacticMatches, 0 SemanticMatches, 8 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 111.8ms TimeCoverageRelationStatistics Valid=30, Invalid=60, Unknown=0, NotChecked=0, Total=90 [2021-08-27 06:23:21,492 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 38 states. [2021-08-27 06:23:21,494 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 38 to 23. [2021-08-27 06:23:21,494 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 23 states, 13 states have (on average 1.1538461538461537) internal successors, (15), 14 states have internal predecessors, (15), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-27 06:23:21,495 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 23 states to 23 states and 24 transitions. [2021-08-27 06:23:21,495 INFO L78 Accepts]: Start accepts. Automaton has 23 states and 24 transitions. Word has length 21 [2021-08-27 06:23:21,495 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:23:21,495 INFO L470 AbstractCegarLoop]: Abstraction has 23 states and 24 transitions. [2021-08-27 06:23:21,495 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 10 states, 9 states have (on average 2.7777777777777777) internal successors, (25), 8 states have internal predecessors, (25), 3 states have call successors, (9), 3 states have call predecessors, (9), 5 states have return successors, (6), 5 states have call predecessors, (6), 3 states have call successors, (6) [2021-08-27 06:23:21,495 INFO L276 IsEmpty]: Start isEmpty. Operand 23 states and 24 transitions. [2021-08-27 06:23:21,496 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:23:21,496 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:23:21,496 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:23:21,506 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (5)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:21,696 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 5 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:23:21,697 INFO L402 AbstractCegarLoop]: === Iteration 5 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:23:21,697 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:23:21,697 INFO L82 PathProgramCache]: Analyzing trace with hash 1600615901, now seen corresponding path program 1 times [2021-08-27 06:23:21,697 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:23:21,698 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [2146439055] [2021-08-27 06:23:21,698 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:21,698 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:23:21,698 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:23:21,699 INFO L229 MonitoredProcess]: Starting monitored process 6 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:23:21,736 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Waiting until timeout for monitored process [2021-08-27 06:23:21,949 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:23:21,951 INFO L263 TraceCheckSpWp]: Trace formula consists of 84 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:23:21,954 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:23:22,016 INFO L388 Elim1Store]: Elim1 did not use preprocessing eliminated variable of array dimension 1, 1 stores, 0 select indices, 0 select index equivalence classes, 0 disjoint index pairs (out of 0 index pairs), introduced 0 new quantified variables, introduced 0 case distinctions, treesize of input 6 treesize of output 5 [2021-08-27 06:23:22,054 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:23:22,054 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:23:22,144 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:23:22,144 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:23:22,144 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [2146439055] [2021-08-27 06:23:22,144 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [2146439055] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:23:22,144 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:23:22,144 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:23:22,145 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [684572592] [2021-08-27 06:23:22,145 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:23:22,145 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:23:22,145 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:23:22,145 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:23:22,146 INFO L87 Difference]: Start difference. First operand 23 states and 24 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:23:22,187 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:23:22,188 INFO L93 Difference]: Finished difference Result 29 states and 31 transitions. [2021-08-27 06:23:22,188 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:23:22,188 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-08-27 06:23:22,189 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:23:22,190 INFO L225 Difference]: With dead ends: 29 [2021-08-27 06:23:22,190 INFO L226 Difference]: Without dead ends: 29 [2021-08-27 06:23:22,191 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 39 SyntacticMatches, 1 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 18.1ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:23:22,191 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 29 states. [2021-08-27 06:23:22,197 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 29 to 29. [2021-08-27 06:23:22,197 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 29 states, 18 states have (on average 1.1111111111111112) internal successors, (20), 19 states have internal predecessors, (20), 5 states have call successors, (5), 4 states have call predecessors, (5), 4 states have return successors, (6), 5 states have call predecessors, (6), 4 states have call successors, (6) [2021-08-27 06:23:22,198 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 29 states to 29 states and 31 transitions. [2021-08-27 06:23:22,198 INFO L78 Accepts]: Start accepts. Automaton has 29 states and 31 transitions. Word has length 22 [2021-08-27 06:23:22,199 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:23:22,199 INFO L470 AbstractCegarLoop]: Abstraction has 29 states and 31 transitions. [2021-08-27 06:23:22,199 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:23:22,199 INFO L276 IsEmpty]: Start isEmpty. Operand 29 states and 31 transitions. [2021-08-27 06:23:22,201 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 23 [2021-08-27 06:23:22,201 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:23:22,201 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:23:22,212 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (6)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:22,410 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 6 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:23:22,411 INFO L402 AbstractCegarLoop]: === Iteration 6 === Targeting entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:23:22,411 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:23:22,411 INFO L82 PathProgramCache]: Analyzing trace with hash -1806847714, now seen corresponding path program 1 times [2021-08-27 06:23:22,411 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:23:22,411 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [666736554] [2021-08-27 06:23:22,411 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:22,411 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:23:22,411 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:23:22,412 INFO L229 MonitoredProcess]: Starting monitored process 7 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:23:22,415 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Waiting until timeout for monitored process [2021-08-27 06:23:22,615 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is unsat [2021-08-27 06:23:22,617 INFO L263 TraceCheckSpWp]: Trace formula consists of 80 conjuncts, 4 conjunts are in the unsatisfiable core [2021-08-27 06:23:22,618 INFO L286 TraceCheckSpWp]: Computing forward predicates... [2021-08-27 06:23:22,695 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:23:22,695 INFO L328 TraceCheckSpWp]: Computing backward predicates... [2021-08-27 06:23:22,778 INFO L134 CoverageAnalysis]: Checked inductivity of 4 backedges. 2 proven. 0 refuted. 0 times theorem prover too weak. 2 trivial. 0 not checked. [2021-08-27 06:23:22,778 INFO L139 FreeRefinementEngine]: Strategy WOLF found an infeasible trace [2021-08-27 06:23:22,778 INFO L332 FreeRefinementEngine]: Using interpolant generator IpTcStrategyModuleMathsat [666736554] [2021-08-27 06:23:22,779 INFO L160 FreeRefinementEngine]: IpTcStrategyModuleMathsat [666736554] provided 2 perfect and 0 imperfect interpolant sequences [2021-08-27 06:23:22,779 INFO L186 FreeRefinementEngine]: Constructing automaton from 2 perfect and 0 imperfect interpolant sequences. [2021-08-27 06:23:22,779 INFO L199 FreeRefinementEngine]: Number of different interpolants: perfect sequences [4, 4] imperfect sequences [] total 4 [2021-08-27 06:23:22,779 INFO L115 tionRefinementEngine]: Using interpolant automaton builder IpAbStrategyModuleStraightlineAll [1939761077] [2021-08-27 06:23:22,779 INFO L546 AbstractCegarLoop]: INTERPOLANT automaton has 5 states [2021-08-27 06:23:22,779 INFO L103 FreeRefinementEngine]: Using predicate unifier PredicateUnifier provided by strategy WOLF [2021-08-27 06:23:22,780 INFO L143 InterpolantAutomaton]: Constructing interpolant automaton starting with 5 interpolants. [2021-08-27 06:23:22,780 INFO L145 InterpolantAutomaton]: CoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:23:22,780 INFO L87 Difference]: Start difference. First operand 29 states and 31 transitions. Second operand has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:23:22,801 INFO L144 Difference]: Subtrahend was deterministic. Have not used determinization. [2021-08-27 06:23:22,802 INFO L93 Difference]: Finished difference Result 30 states and 32 transitions. [2021-08-27 06:23:22,802 INFO L141 InterpolantAutomaton]: Switched to read-only mode: deterministic interpolant automaton has 5 states. [2021-08-27 06:23:22,802 INFO L78 Accepts]: Start accepts. Automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) Word has length 22 [2021-08-27 06:23:22,803 INFO L84 Accepts]: Finished accepts. some prefix is accepted. [2021-08-27 06:23:22,804 INFO L225 Difference]: With dead ends: 30 [2021-08-27 06:23:22,804 INFO L226 Difference]: Without dead ends: 30 [2021-08-27 06:23:22,805 INFO L781 BasicCegarLoop]: 0 DeclaredPredicates, 43 GetRequests, 40 SyntacticMatches, 0 SemanticMatches, 3 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 0 ImplicationChecksByTransitivity, 11.3ms TimeCoverageRelationStatistics Valid=7, Invalid=13, Unknown=0, NotChecked=0, Total=20 [2021-08-27 06:23:22,805 INFO L82 GeneralOperation]: Start minimizeSevpa. Operand 30 states. [2021-08-27 06:23:22,813 INFO L88 GeneralOperation]: Finished minimizeSevpa. Reduced states from 30 to 22. [2021-08-27 06:23:22,813 INFO L82 GeneralOperation]: Start removeUnreachable. Operand has 22 states, 13 states have (on average 1.0769230769230769) internal successors, (14), 13 states have internal predecessors, (14), 5 states have call successors, (5), 4 states have call predecessors, (5), 3 states have return successors, (4), 4 states have call predecessors, (4), 4 states have call successors, (4) [2021-08-27 06:23:22,814 INFO L88 GeneralOperation]: Finished removeUnreachable. Reduced from 22 states to 22 states and 23 transitions. [2021-08-27 06:23:22,814 INFO L78 Accepts]: Start accepts. Automaton has 22 states and 23 transitions. Word has length 22 [2021-08-27 06:23:22,815 INFO L84 Accepts]: Finished accepts. word is rejected. [2021-08-27 06:23:22,815 INFO L470 AbstractCegarLoop]: Abstraction has 22 states and 23 transitions. [2021-08-27 06:23:22,815 INFO L471 AbstractCegarLoop]: INTERPOLANT automaton has has 5 states, 4 states have (on average 3.25) internal successors, (13), 4 states have internal predecessors, (13), 1 states have call successors, (5), 1 states have call predecessors, (5), 2 states have return successors, (3), 2 states have call predecessors, (3), 1 states have call successors, (3) [2021-08-27 06:23:22,815 INFO L276 IsEmpty]: Start isEmpty. Operand 22 states and 23 transitions. [2021-08-27 06:23:22,816 INFO L282 IsEmpty]: Finished isEmpty. Found accepting run of length 26 [2021-08-27 06:23:22,816 INFO L504 BasicCegarLoop]: Found error trace [2021-08-27 06:23:22,816 INFO L512 BasicCegarLoop]: trace histogram [2, 2, 2, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1] [2021-08-27 06:23:22,829 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (7)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:23,029 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 7 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:23:23,030 INFO L402 AbstractCegarLoop]: === Iteration 7 === Targeting mainErr0ENSURES_VIOLATIONMEMORY_LEAK === [ldv_msg_allocErr0REQUIRES_VIOLATION, ldv_msg_allocErr1REQUIRES_VIOLATION, ldv_kref_initErr0REQUIRES_VIOLATION, ldv_kref_initErr1REQUIRES_VIOLATION (and 70 more)] === [2021-08-27 06:23:23,030 INFO L144 PredicateUnifier]: Initialized classic predicate unifier [2021-08-27 06:23:23,030 INFO L82 PathProgramCache]: Analyzing trace with hash 1221784944, now seen corresponding path program 1 times [2021-08-27 06:23:23,030 INFO L121 FreeRefinementEngine]: Executing refinement strategy WOLF [2021-08-27 06:23:23,030 INFO L332 FreeRefinementEngine]: Using trace check IpTcStrategyModuleMathsat [730512106] [2021-08-27 06:23:23,030 INFO L95 rtionOrderModulation]: Keeping assertion order NOT_INCREMENTALLY [2021-08-27 06:23:23,030 INFO L170 SolverBuilder]: Constructing external solver with command: mathsat -unsat_core_generation=3 [2021-08-27 06:23:23,031 INFO L189 MonitoredProcess]: No working directory specified, using /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat [2021-08-27 06:23:23,031 INFO L229 MonitoredProcess]: Starting monitored process 8 with /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (exit command is (exit), workingDir is null) [2021-08-27 06:23:23,034 INFO L327 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Waiting until timeout for monitored process [2021-08-27 06:23:23,239 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:23:23,239 INFO L354 TraceCheck]: Trace is feasible, we will do another trace check, this time with branch encoders. [2021-08-27 06:23:23,272 INFO L136 AnnotateAndAsserter]: Conjunction of SSA is sat [2021-08-27 06:23:23,301 INFO L133 FreeRefinementEngine]: Strategy WOLF found a feasible trace [2021-08-27 06:23:23,301 INFO L626 BasicCegarLoop]: Counterexample is feasible [2021-08-27 06:23:23,302 INFO L764 garLoopResultBuilder]: Registering result UNSAFE for location mainErr0ENSURES_VIOLATIONMEMORY_LEAK [2021-08-27 06:23:23,303 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_allocErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kref_initErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr2REQUIRES_VIOLATION [2021-08-27 06:23:23,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_add_returnErr3REQUIRES_VIOLATION [2021-08-27 06:23:23,304 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr2REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location LDV_INIT_LIST_HEADErr3REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr2REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr3REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr4REQUIRES_VIOLATION [2021-08-27 06:23:23,305 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr5REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr6REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_addErr7REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_set_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location __ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,306 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr2REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_atomic_sub_returnErr3REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_addErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr2REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr3REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr4REQUIRES_VIOLATION [2021-08-27 06:23:23,307 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_destroy_msgsErr5REQUIRES_VIOLATION [2021-08-27 06:23:23,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_dev_get_drvdataErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,308 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_freeErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr2REQUIRES_VIOLATION [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr3REQUIRES_VIOLATION [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr4REQUIRES_VIOLATION [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_msg_fillErr5REQUIRES_VIOLATION [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,309 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr3ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr4ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr5ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr6ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_cleanupErr7ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_kobject_createErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,310 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr2REQUIRES_VIOLATION [2021-08-27 06:23:23,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_delErr3REQUIRES_VIOLATION [2021-08-27 06:23:23,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr0REQUIRES_VIOLATION [2021-08-27 06:23:23,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location ldv_list_add_tailErr1REQUIRES_VIOLATION [2021-08-27 06:23:23,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr0ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr1ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,311 INFO L764 garLoopResultBuilder]: Registering result UNKNOWN for location entry_pointErr2ASSERT_VIOLATIONMEMORY_FREE [2021-08-27 06:23:23,320 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 (8)] Forceful destruction successful, exit code 0 [2021-08-27 06:23:23,520 WARN L452 AbstractCegarLoop]: Destroyed unattended storables created during the last iteration: 8 /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/mathsat -unsat_core_generation=3 [2021-08-27 06:23:23,525 INFO L179 ceAbstractionStarter]: Computing trace abstraction results [2021-08-27 06:23:23,530 WARN L418 cessorBacktranslator]: Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) [2021-08-27 06:23:23,542 INFO L202 PluginConnector]: Adding new model de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction CFG 27.08 06:23:23 BoogieIcfgContainer [2021-08-27 06:23:23,542 INFO L132 PluginConnector]: ------------------------ END TraceAbstraction---------------------------- [2021-08-27 06:23:23,542 INFO L113 PluginConnector]: ------------------------Witness Printer---------------------------- [2021-08-27 06:23:23,543 INFO L271 PluginConnector]: Initializing Witness Printer... [2021-08-27 06:23:23,543 INFO L275 PluginConnector]: Witness Printer initialized [2021-08-27 06:23:23,543 INFO L185 PluginConnector]: Executing the observer RCFGCatcher from plugin Witness Printer for "de.uni_freiburg.informatik.ultimate.plugins.generator.rcfgbuilder CFG 27.08 06:23:18" (3/4) ... [2021-08-27 06:23:23,561 INFO L140 WitnessPrinter]: No result that supports witness generation found [2021-08-27 06:23:23,562 INFO L132 PluginConnector]: ------------------------ END Witness Printer---------------------------- [2021-08-27 06:23:23,563 INFO L168 Benchmark]: Toolchain (without parser) took 7392.99 ms. Allocated memory was 69.2 MB in the beginning and 142.6 MB in the end (delta: 73.4 MB). Free memory was 47.4 MB in the beginning and 109.6 MB in the end (delta: -62.2 MB). Peak memory consumption was 12.1 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:23,563 INFO L168 Benchmark]: CDTParser took 0.19 ms. Allocated memory is still 69.2 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:23:23,564 INFO L168 Benchmark]: CACSL2BoogieTranslator took 566.68 ms. Allocated memory is still 69.2 MB. Free memory was 47.2 MB in the beginning and 34.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:23,564 INFO L168 Benchmark]: Boogie Preprocessor took 130.17 ms. Allocated memory is still 69.2 MB. Free memory was 34.4 MB in the beginning and 48.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:23,564 INFO L168 Benchmark]: RCFGBuilder took 1540.64 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 48.6 MB in the beginning and 49.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:23,565 INFO L168 Benchmark]: TraceAbstraction took 5130.85 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 49.1 MB in the beginning and 109.6 MB in the end (delta: -60.5 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. [2021-08-27 06:23:23,565 INFO L168 Benchmark]: Witness Printer took 19.11 ms. Allocated memory is still 142.6 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 16.1 GB. [2021-08-27 06:23:23,566 INFO L339 ainManager$Toolchain]: ####################### End [Toolchain 1] ####################### --- Results --- * Results from de.uni_freiburg.informatik.ultimate.core: - StatisticsResult: Toolchain Benchmarks Benchmark results are: * CDTParser took 0.19 ms. Allocated memory is still 69.2 MB. Free memory is still 49.8 MB. There was no memory consumed. Max. memory is 16.1 GB. * CACSL2BoogieTranslator took 566.68 ms. Allocated memory is still 69.2 MB. Free memory was 47.2 MB in the beginning and 34.4 MB in the end (delta: 12.8 MB). Peak memory consumption was 10.5 MB. Max. memory is 16.1 GB. * Boogie Preprocessor took 130.17 ms. Allocated memory is still 69.2 MB. Free memory was 34.4 MB in the beginning and 48.6 MB in the end (delta: -14.2 MB). Peak memory consumption was 8.4 MB. Max. memory is 16.1 GB. * RCFGBuilder took 1540.64 ms. Allocated memory was 69.2 MB in the beginning and 92.3 MB in the end (delta: 23.1 MB). Free memory was 48.6 MB in the beginning and 49.8 MB in the end (delta: -1.2 MB). Peak memory consumption was 34.8 MB. Max. memory is 16.1 GB. * TraceAbstraction took 5130.85 ms. Allocated memory was 92.3 MB in the beginning and 142.6 MB in the end (delta: 50.3 MB). Free memory was 49.1 MB in the beginning and 109.6 MB in the end (delta: -60.5 MB). Peak memory consumption was 64.0 MB. Max. memory is 16.1 GB. * Witness Printer took 19.11 ms. Allocated memory is still 142.6 MB. Free memory is still 109.6 MB. There was no memory consumed. Max. memory is 16.1 GB. * Results from de.uni_freiburg.informatik.ultimate.boogie.preprocessor: - GenericResult: Unfinished Backtranslation Generated EnsuresSpecification ensures #valid == old(#valid); is not ensure(true) * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.cacsl2boogietranslator: - GenericResult: Unfinished Backtranslation The program execution was not completely translated back. * Results from de.uni_freiburg.informatik.ultimate.plugins.generator.traceabstraction: - StatisticsResult: ErrorAutomatonStatistics NumberErrorTraces: 0, NumberStatementsAllTraces: 0, NumberRelevantStatements: 0, 0.0ms ErrorAutomatonConstructionTimeTotal, 0.0ms FaulLocalizationTime, NumberStatementsFirstTrace: -1, TraceLengthAvg: 0, 0.0ms ErrorAutomatonConstructionTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeAvg, 0.0ms ErrorAutomatonDifferenceTimeTotal, NumberOfNoEnhancement: 0, NumberOfFiniteEnhancement: 0, NumberOfInfiniteEnhancement: 0 - UnprovableResult [Line: 764]: Unable to prove that all allocated memory was freed Unable to prove that all allocated memory was freed Reason: overapproximation of memtrack at line 764. Possible FailurePath: [L569] struct ldv_list_head ldv_global_msg_list = { &(ldv_global_msg_list), &(ldv_global_msg_list) }; VAL [\old(ldv_global_msg_list)=null, \old(ldv_global_msg_list)=null, ldv_global_msg_list={-2147483648:0}] [L765] CALL entry_point() VAL [ldv_global_msg_list={-2147483648:0}] [L758] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L758] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={1:0}] [L758] int *p = (int *)ldv_malloc(sizeof(int)); [L759] COND TRUE \read(*p) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}] [L760] CALL, EXPR ldv_malloc(sizeof(int)) VAL [\old(size)=4, ldv_global_msg_list={-2147483648:0}] [L526] COND TRUE __VERIFIER_nondet_int() [L527] return malloc(size); [L760] RET, EXPR ldv_malloc(sizeof(int)) VAL [ldv_global_msg_list={-2147483648:0}, ldv_malloc(sizeof(int))={2:0}, p={1:0}] [L760] int *q = (int *)ldv_malloc(sizeof(int)); [L761] free(q) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}, q={2:0}] [L761] free(q) VAL [ldv_global_msg_list={-2147483648:0}, p={1:0}, q={2:0}] [L761] free(q) [L765] RET entry_point() VAL [ldv_global_msg_list={-2147483648:0}] - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 578]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 682]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 658]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 660]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 540]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 541]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 547]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 548]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 549]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 550]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 623]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 554]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 555]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 666]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 668]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 559]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 607]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 619]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 593]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 594]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 587]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 588]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 699]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 700]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 702]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 744]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 567]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 563]: Unable to prove that pointer dereference always succeeds Unable to prove that pointer dereference always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - UnprovableResult [Line: 761]: Unable to prove that free always succeeds Unable to prove that free always succeeds Reason: Not analyzed. - StatisticsResult: Ultimate Automizer benchmark data CFG has 47 procedures, 338 locations, 74 error locations. Started 1 CEGAR loops. OverallTime: 5071.9ms, OverallIterations: 7, TraceHistogramMax: 2, EmptinessCheckTime: 13.9ms, AutomataDifference: 327.8ms, DeadEndRemovalTime: 0.0ms, HoareAnnotationTime: 0.0ms, InitialAbstractionConstructionTime: 8.8ms, PartialOrderReductionTime: 0.0ms, HoareTripleCheckerStatistics: 161 SDtfs, 64 SDslu, 321 SDs, 0 SdLazy, 134 SolverSat, 17 SolverUnsat, 0 SolverUnknown, 0 SolverNotchecked, 202.8ms Time, PredicateUnifierStatistics: 0 DeclaredPredicates, 228 GetRequests, 206 SyntacticMatches, 1 SemanticMatches, 21 ConstructedPredicates, 0 IntricatePredicates, 0 DeprecatedPredicates, 12 ImplicationChecksByTransitivity, 171.0ms Time, 0.0ms BasicInterpolantAutomatonTime, BiggestAbstraction: size=98occurred in iteration=0, InterpolantAutomatonStates: 33, traceCheckStatistics: No data available, InterpolantConsolidationStatistics: No data available, PathInvariantsStatistics: No data available, 0/0 InterpolantCoveringCapability, TotalInterpolationStatistics: No data available, 0.0ms DumpTime, AutomataMinimizationStatistics: 43.0ms AutomataMinimizationTime, 6 MinimizatonAttempts, 45 StatesRemovedByMinimization, 4 NontrivialMinimizations, HoareAnnotationStatistics: No data available, RefinementEngineStatistics: TRACE_CHECK: 62.0ms SsaConstructionTime, 145.0ms SatisfiabilityAnalysisTime, 1542.9ms InterpolantComputationTime, 142 NumberOfCodeBlocks, 142 NumberOfCodeBlocksAsserted, 7 NumberOfCheckSat, 222 ConstructedInterpolants, 12 QuantifiedInterpolants, 542 SizeOfPredicates, 1 NumberOfNonLiveVariables, 455 ConjunctsInSsa, 29 ConjunctsInUnsatCore, 12 InterpolantComputations, 12 PerfectInterpolantSequences, 32/32 InterpolantCoveringCapability, INVARIANT_SYNTHESIS: No data available, INTERPOLANT_CONSOLIDATION: No data available, ABSTRACT_INTERPRETATION: No data available, PDR: No data available, ACCELERATED_INTERPOLATION: No data available, SIFA: No data available, ReuseStatistics: No data available RESULT: Ultimate could not prove your program: unable to determine feasibility of some traces [2021-08-27 06:23:23,604 INFO L540 MonitoredProcess]: [MP /storage/repos/ultimate/releaseScripts/default/UAutomizer-linux/z3 SMTLIB2_COMPLIANT=true -memory:2024 -smt2 -in -t:2000 (1)] Forceful destruction successful, exit code 0 Received shutdown request...